And, of course, since the movie has such an important agenda
to promote, it is entirely appropriate to engage in rank dishonesty,
as when the movie shows TV screen shots of network or cable news with voice-overs
to suggest that what was said on the news was what the (unidentified)
voice-overs tell us (not remotely). There is also e.g. a quote attributed to
David Rockefeller, though conveniently without providing a source or date. Now,
the zeitgeist website does include a Sources
page, but its just a list of books with no page numbers or further
information given. Perhaps they just “forgot”? Edward Winston did a thorough
job of locating sources here,
but unfortunately his research tended to undermine the claims made in the movie
itself – most of the quotes attributed to various historical people are either
badly quote-mined or simply made up (often by other conspiracy theorist on other conspiracy
websites). Apparently Joseph responded to Winston’s criticisms by suggesting
that Winston must be mentally ill for disagreeing with him, so there’s that.

Zeitgest: Addendum,
the follow-up movie, is somewhat less concerned with conspiracy theories and
more with economic woo. Based on the message of the movies, Joseph also later started
the Zeitgeist movement, a grass-roots international internet network formed to
further his ideas with pseudo-economic ideas derived from The Venus Project and Buckminster Fuller.
His Gentle Machine Productions LLC has later produced the web series Culture in Decline and InterReflections, which don’t seem to
have made the same splash.